119 OPTIMIZATION OF A GREENHOUSE BUILDING Belgium The CRM Group research team has undertaken a project focused on the structural optimization of a greenhouse. The objective was to replace tubular elements made of basic steel grades with cold-formed profiles made of high-value steel products. This study was conducted in collaboration with ArcelorMittal Global R&D and TNO. The reference structure used in the project was a Venlo-type greenhouse with dimensions of 15 m x 72 m and a height of 8.20 m. The structure primarily consisted of RHS profiles in steel, with bracing bars and aluminum gutters. The loads acting on the structure included wind, snow accumulation, crops, equipment, and seismic loads. Given its configuration, a significant portion of the loads and masses were located eccentrically at the roof level. To optimize the structure, the analysis focused on utilizing cold-formed profiles for columns and trusses. SCIA Engineer played a crucial role in the project, enabling efficient steel code checks according to EN 1993-1-3 for various configurations. Additionally, nonlinear analysis was conducted to account for the tension-only behavior of the horizontal and vertical bracing bars. Thanks to the capabilities of SCIA Engineer, the research team could swiftly perform code checks and conduct comprehensive analyses, leading to an enhanced structural design for the greenhouse. ARCHITECT CRMGroup OWNER Arcelormittal FCE ENGINEERING COMPANY CRMGroup Giuseppe Sellitto, Allée de l’Innovation 1, B57 Quartier Polytech 3, Liege, Belgium www.crmgroup.be/en INDUSTRIAL BUILDINGS & PLANTS 3 © Martin Bergsma / Shutterstock.com
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